Home / 3,225-4,451.45-2,106.11

Finding the Fourth Proportional to 3,225, 4,451.45 and 2,106.11

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Solution

The fourth proportional to 3,225, 4,451.45 and 2,106.11 is: 2,907.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,225 : 4,451.45 = 2,106.11 : x
  2. Step 2: Convert to fraction form
    3,225/4,451.45 = 2,106.11/x
  3. Step 3: Cross multiply
    3,225x = 4,451.45 × 2,106.11
  4. Step 4: Simplify right side
    3,225x = 9,375,243.36
  5. Step 5: Solve for x
    x = 9,375,243.36/3,225
  6. Step 6: Final answer
    x = 2,907.05

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.